SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0656 PM CST Mon Dec 15 2025 Valid 160100Z - 161200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not forecast tonight. ...Pacific Northwest... Thunderstorms earlier this afternoon over southwest OR have fully decayed in the past couple hours. A lone storm or two will be possible tonight within the persistent, but modest low-level warm conveyor that will shift farther inland to the northern Rockies. With flimsy elevated buoyancy expected (MUCAPE at or below 100 J/kg), overall thunderstorm probabilities appear negligible. A few lightning flashes were also detected in the last hour across northwest WA near a shortwave trough, that will rapidly progress east across far southern AB/SK tonight. This thunder threat is expected to remain very isolated and diminish east of the Cascades. ..Grams.. 12/16/2025
